Roller-bearing



E. NORDLUND.

ROLLER BEARING.

APPLICATION mm OCT. is, 1919.

1,344,276. Patented June 22, 1920.

2 SHEETS-SHEET Fig. 1

INVENTOR By Altomeys,

Ska/w gv E. NORDLUND. ROLLER BEARING. APPLICATION mm OCT- 18, ms.

Patented June 22, 1920.

INVENTOR fwd 7% By Attorneys,

5mm .Dvw by;

UNITED STATES PATENT OFFICE.

ERLAND NORDLUND, OF STOCKHOLM, SWEDEN, ASSIGNOR TO AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN, 0F GOTTENBORG, SWEDEN, A CORPORA- 'IION OF SWEDEN.

ROLLER-BEARING.

Specification of Letters Patent.

1 '0 all whom it may concern:

Be it known that I, ERLANJ) N ORDLUND, a subject of. the Kim of Sweden, residing at Stockholm, in the kingdom oi Sweden, have invented new and. useful Improvements in lloller-l3earings, of which the following is a specification. 4

This invention relates to roller bearings having conical rollers and sdcalled 'l'imkezr guides for the rollers. in some roller bearings of this kind the rollers are provided at their larger ends with enlargements or heads l.carin; against flanges formed on the hearing rings. In order to reduce in such bearings the friction between the rollers and the supporting fiaiig es of the bearing rings and to prevent oblique displacement of the rollers, it has been proposed to limit the contact between the rollers and the supporting flanges, practically taken, to one point only and to place this point in the extension of a generatrix of the conical superficies oi the roller.

The object of the invention is, while maintaining smalL friction and reliable guiding of the rollers, to obtain a simpler and cheaper manufa ture of the bearing than hitherto and to eil'ect the fillin q of all the rollers without using a filling opening or the like, the usual supporting flange on the bearing ring or rings being omitted altogether.

The invention consists, chiefly, in this,

that the enlarged portion of the roller hears I against a cylindrical surface on the inner side of the outer bearing ring. Said portion of the roller may, preferably, be formed by a curved gcneratrix, the contact between said portion of the roller and the cylindrical surface of the bearing rin thus bein limited to one point preferably iocated in t e extension of a generatrix of the conical superficics of the roller.

In the drawing two embodiments of the invention are illustrated. Figure 1 is a cross-section of a roller bearing having one row of rollers. Fig. 2 is a cross-section on an enlarged scale of a portion of same hearing, and Fig. 3 is a crosssection of a bearing harin two rows of rollers.

Re erring to Figs. 1 and 2, theroller bearing consists of an undivided outerhearing rim' 1, an undivided inner bearing ring 2 an conic'ai rollers 3 inserted'hctween said bearing rings and the apices of which are positioned in the axis of the bearing. At the outer end each of the rollers 3 is provided with a guiding head 4 having greater diameter than the remaining pa'rt of the roller and formed by a curved 'geueratrix preferably an are, as shown in Fig. 2. The heads 4 of the rollers bear against a cylindri cal surface 5 on the inner side of the outer bearing ring 1 at a. point positioned in the extension 0 of the genenutrix of the conical superticics of the roller.

Axial thrusts in the direction from the right to the left in Fig. 1 are taken up by the conical rollers, whereas axial thrusts in opposite direction are taken up by a. thrust ball bearing, one bearing, ring of which con sists of the outer bearing ring 1 of the roller hearing. The other bearing ring 7 of said thrust bearing is by means of nuts 8 and 9 clamped in fixed relation to the inner hearing ring 2 of the roller hearing. If desired, the hearing rings 2 and 7 may be connected by an inner socket riveted at the ends, the Whole bea ring thus forming a self-contained unit.

in the roller bearing shown in Fig. 3 and having two rows of rollers the outer ring 10 forms a single piece, whereas the inner ring consists of two parts 11 and 12 kept together by an inner socket 13 riveted at the ends, the bearing thus forming a self-contained unit. The conical rollers 14 and 15 are arran ed in the same manner as in the bear-in s rown in Figs. 1 and 2, the heads 16 an 17 bearing against inner cylindrical surfaces 18 and 19 on the outer bearing ring at a point positioned in the extension of the generatrix of the curved superficies of the roller. If desired, the inner ring may he made in one piece and the outer ring may consist of twoparts.

What I claim V E I 1. A roller bearing qomprising an inner bearing ring, an outer bearing rin avin" conical and cylindrical races, and

anieter than theeconical surface of theroll- 2. A roller hearing, wei hti s inner bearing,

cal and cylindrical races, and%onical 'rbn'rs Patented June 22, 1950:

conica rollers having guiding heads of greater di an outerhearing,rlno' ha zine cont guiding having guiding heads of greater diameter ;than the conical surface of the rollers, said heads having point contact only with the cylindrical race of the outer hearing ring.

3. A roller bearing, comprising an inner bearing ring, an outer bearing rin having conical an cylindrical races, an conical rollers having guiding heads the surfaces of which are formed with a curved generatrix and are adapted to run in contact with the cylindrical race of the outer bearing ring.

4. A roller bearing, comprising an inner bearing ring, an outer bearing rin having conical and cylindrical races, an conical rollers having guiding heads the surfaces of which are formed with a curved generatrix and are adapted to run in contact with the cylindrical race of the outer bearing ring, the contact between each head and said race being limited to one point only positioned in the extension of a generatrix of the conical surface of the roller.

6. A combined radial and thrust roller bearing, comprisin an outer bearing ring having conlcal an and a side race, an inner bearing ring, conical rollers having guiding heads the surfaces of which are adapted to run in contact with cylindrical inner races said cylindrical race, and means for taking up axial thrust in direction opposite to that received by said rollers.

6. A combined radial and thrust roller hearing, comprising an integral outer bear in ring having opposite conical races and cy indrical side races, an inner bearing rin made in two parts havin opposed coniea races and attached to eac other, and two sets of conical rollers havin guiding heads the surfaces of which are a apted to run in eonta ct with said cylindrical races, said hearin both directions.

7. A roller bearing, comprising an inner bearing ring, an outer bearing ring having conical and cylindrical races, and two rows of conical rollers having convex heads in contact with said cylindrical races.

8. A roller bearing, comprising a divided inner bearing ring, an integral outer bearing ring having conical and cylindrical races, and two rows of conical rollers having convex heads in contact with said cylindrical races.

In testimony whereof I have signed my name.

ERLAND NORDLUND.

adapted to resist axial thrusts in 

